MTC20174 ST Microelectronics, MTC20174 Datasheet - Page 4

• Manufacturer Part Number: MTC20174
• Description: (MTC20138 / MTC20174) PCI/USB ADSL CHIPSET
• Manufacturer: ST Microelectronics

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DataSheet
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– Operation up to 18 kft (26 AWG)
– More than 8 Mbps downstream and 832 Kbps
– More than 3 Mbps downstream and 760 kbps
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The MTC20174 is an ADSL Analog Front-End
(AFE) with integrated Line-Driver for ATU-R appli-
cations offering Annex A, B and C.
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The MTC20174 Analog Front End (AFE) with inte-
grated line driver is designed for DMT based
ADSL CPE modems compliant with ANSI T1.413
issue 2, ITU G.992.1 (G.dmt) and ITU G.992.2
(G.lite), for Annex A, B and C.
September 2004
This is preliminary information on a new product foreseen to be developed. Details are subject to change without notice.
Fully Integrated AFE and Line Driver for ADSL
Overall 12 bit resolution, 1.1MHz signal
bandwidth
8.8 MS/s ADC
8.8 MS/s DAC
Differential analog I/O
Accurate continuous-time channel filtering
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and transmit filters respectively
Support for multiple ADSL standards:
– ANSI T1.413 Issue 2
– ITU G.992.1 (G.dmt)
– ITU G.992.2 (G.lite)
Highest performance:
upstream up to 8 kft (26 AWG)
upstream up to 12 kft (26 AWG)
100 pin TQFP package allows high-density
board design
Power dissipation of 900mW at 25°C, typical
th
– Annex A
– Annex B (ADSL over ISDN)
– Annex C (ADSL over ISDN SBM/DBM/
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FEATURES
APPLICATIONS
GENERAL DESCRIPTION
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order tunable continuous-time receive
ADSL ANALOG FRONT END WITH INTEGRATED LINE
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DRIVER FOR CPE APPLICATIONS
It is intended to be used with the MTC20166 DMT
modem and ATM framer as part of the MTK20170
chipset, but may also be used to support other
ADSL signal processors. It includes the following
parts:
The following figure provides a graphical repre-
sentation of the MTC20174 functional blocks with
an additional separation in RX and TX path.
The analog and digital part have separated 3.3V
power supplies. In addition some part of the ana-
log section of the MTC20174 has a power supply
of 5V.
The typical total power consumption of the
MTC20174 is 900mW for 12dBm of line power (full
operation) at 250°C.
The package is a 100 pin TQFP.
Figure 3. Package
Table 2. Order Codes
MTC20174-TQ-C1TR
A 12-bit 8.8Msamples/s DAC
A 13-bit 8.8Msamples/s ADC
Tunable low-pass and high-pass filters
Low-noise PGAs
A TX Pre-Amplifier
A TX Line-Driver
A fully integrated DCXO
A PLL-based frequency doubler
A filter tuning circuit
A dying gasp circuit
A digital module for control, test and interface
MTC20174-TQ-C1
Part Number
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TQFP100
Tape & Reel
TQFP100
Package
MTC20174
Temperature
DATA BRIEF
0 to 70°C
0 to 70°C
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